An illuminated ACC car emblem with automatic de-icing and heating control functions

Abstract

This invention relates to the field of automotive radar wave transmission performance and vehicle headlight illumination technology, and particularly to a luminous ACC (Adaptive Cruise Control) vehicle emblem with automatic de-icing and heating control functions. To overcome the drawback that frozen ice on the emblem surface hinders radar signal transmission, the invention includes an inner and outer cover mounted on a housing. A radiator and an integrated circuit board are installed inside the housing, as well as a heater. Holes are provided in the center of the radiator, the integrated circuit board, and the heater. This invention uses the heater to heat the inner and outer covers, rapidly melting the ice and snow covering the outer cover. Simultaneously, heating the outer cover reduces the obstruction area of ​​the radiator, integrated circuit board, and heater on the radar, lowering the probability of radar signal interference due to ice and snow on the outer cover, thereby ensuring radar signal accuracy.

Description

Technical Field

[0001] This invention relates to the field of automotive radar wave transmission performance and vehicle headlight illumination technology, and in particular to an illuminated ACC car logo with automatic de-icing and heating control function. Background Technology

[0002] With the increasing prevalence of radar systems in automobiles, most car manufacturers choose to install radar behind their logos. This is because most logos are located in the center of the front of the car, which is the optimal installation height for radar. Existing illuminated logos have luminous lines on their surface. If radar is installed inside the logo, these luminous lines must avoid the radar signal to ensure that they do not affect the radar's transmission performance. In winter, when the temperature drops below 0°C, ice will freeze on the surface of the illuminated ACC logo and become difficult to remove, thus affecting the logo's brightness. If ice and snow obstruct the radar's transmission performance, it will also affect driving safety. Summary of the Invention

[0003] To overcome the drawback that frozen ice on the surface of a car logo can hinder the transmission of radar signals, this invention provides a luminous ACC car logo with automatic de-icing and heating control functions.

[0004] The technical solution of the present invention is: a luminous ACC car emblem with automatic de-icing and heating control function, comprising an inner cover and an outer cover installed in a housing, wherein luminous lines are provided inside the outer cover and the outer surface of the outer cover is a smooth surface, a heat sink and an integrated circuit board are installed inside the housing, and a heater is installed inside the housing, wherein the heat sink, the integrated circuit board and the heater are arranged sequentially from the closest to the housing to the furthest point, and a through hole is provided in the middle of the heat sink, the integrated circuit board and the heater, and a radar is provided in the housing, wherein the radar is embedded in the through hole in the middle of the heat sink, the integrated circuit board and the heater.

[0005] Furthermore, a fixing ring is fixed to the side of the radar away from the housing, the fixing ring is fitted with the inner cover, and the fixing ring is provided with a number of circumferentially distributed notches.

[0006] Furthermore, the radar is equipped with a plurality of circumferentially distributed illumination lamps, all of which illuminate the outer cover along its axis.

[0007] Furthermore, all the illumination lamps are located around the radar, and the illumination lamps adopt a V-shaped dot optical structure and V-Cut laser processing technology to reduce the area of ​​the light source emitted by the illumination lamps that obstructs the radar signal.

[0008] Furthermore, the inner cover is rotatably connected to a rotating ring, and a torsion spring is fixedly connected between the rotating ring and the radar. The radar is fixedly connected to an outer sleeve, and a thermal block is disposed inside the outer sleeve. The outer sleeve is slidably connected to an inner sliding rod, and the thermal block is located between the outer sleeve and the inner sliding rod. A pressing block is fixedly connected to the inner sliding rod. The rotating ring is provided with a limiting groove, and the pressing block is used to press the limiting groove to make the rotating ring rotate. The rotating ring is provided with a plurality of circumferentially distributed holes, and the radar is fixedly connected with circumferentially distributed elastic telescopic rods of the same number as the number of holes. The telescopic part of the elastic telescopic rod is used to punch into adjacent holes.

[0009] Furthermore, an elastic block is fixedly connected to the hole, and the telescopic part of the elastic telescopic rod is used to compress the elastic block.

[0010] Furthermore, the elastic coefficient of the elastic telescopic rod is less than that of the elastic block, and the elastic coefficient of the elastic block is less than that of the torsion spring on the rotating ring.

[0011] Furthermore, the rotating ring is fixed with a flexible strip, which is used to seal all the gaps in the fixed ring.

[0012] Furthermore, the flexible strip is provided with a plurality of circumferentially distributed flow grooves, which are used to connect to the corresponding notches on the fixing ring.

[0013] Furthermore, an impact ball is provided between the inner cover and the outer cover, and an elastic element is fixedly connected between the impact ball and both the inner cover and the outer cover.

[0014] Compared with existing technologies, the present invention has the following advantages: The present invention heats the inner and outer covers with a heater, so that the ice and snow covering the outer surface of the outer cover melts quickly. While heating the outer cover, the obstruction area of ​​the heat sink, integrated circuit board and heater on the radar is reduced, reducing the probability that the radar signal is affected by the ice and snow covering the outer cover, thereby ensuring the accuracy of the radar signal. During the process of heating the ice and snow, the telescopic part of the elastic telescopic rod impacts the rotating ring. The rotating ring transmits the impact force to the inner and outer covers, causing the outer cover to be impacted and assisting the ice and snow on the outer cover to fall off. The impact ball shakes and impacts the outer cover, causing the outer cover to vibrate and shake off the ice and snow on the outer surface of the outer cover. This accelerates the probability of the ice and snow falling off the outer surface of the outer cover during the melting process, thereby reducing the obstruction of the radar signal by the ice and snow and improving the accuracy of the radar signal. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural cross-sectional view of the inner and outer covers of the present invention;

[0017] Figure 3 This is an exploded three-dimensional view of the inner and outer covers of the present invention.

[0018] Figure 4 This is an exploded three-dimensional view of the housing, heat sink, and integrated circuit board of the present invention.

[0019] Figure 5 This is a three-dimensional structural diagram of the rotating ring of the present invention;

[0020] Figure 6 This is a three-dimensional structural cross-sectional view of the rotating ring of the present invention;

[0021] Figure 7 This is a three-dimensional structural diagram of the extrusion block of the present invention;

[0022] Figure 8 This is a three-dimensional structural diagram of the impact ball of the present invention.

[0023] In the attached diagram, the following labels are used: 1-shell, 101-radar, 2-inner cover, 3-outer cover, 4-heat sink, 5-integrated circuit board, 6-heater, 7-fixed ring, 8-illumination lamp, 9-rotating ring, 10-outer sleeve, 11-thermal block, 12-inner slide bar, 13-compression block, 14-limiting groove, 15-elastic telescopic rod, 16-hole, 17-elastic block, 18-flexible strip, 19-flow groove, 20-impact ball. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] In cold and snowy regions, the surface of car logos is prone to snow and ice accumulation, which poses a serious challenge to the performance of the ACC radar integrated in the logo. Snow and ice can absorb, scatter, or reflect radar waves, resulting in radar signal attenuation, distortion, or even complete blockage, which seriously affects the detection accuracy and reliability of the ACC system, and thus affects the driving safety of the vehicle.

[0027] A type of illuminated ACC (Adaptive Cruise Control) logo with automatic de-icing and heating control functions, such as Figures 1-6As shown, the system includes an inner cover 2 and an outer cover 3 installed on the housing 1. The outer cover 3 is tightly fitted to the housing 1. Illuminating lines are provided inside the outer cover 3. The surface of the outer cover 3 is coated with a metal layer (wherein, the metal coating adopts NCVM non-conductive thin film technology to control the thickness of the metal coating at the nanometer level, balancing the metallic texture of the car logo and radar penetration), so that the outer surface of the outer cover 3 has a metallic appearance, and the logo features are highlighted by the luminous lines inside the outer cover 3. Both the inner cover 2 and the outer cover 3 adopt indium metal plating technology to achieve radar wave transmission function, without the harmful substances such as hexavalent chromium produced by water electroplating, while satisfying the metallic texture. Due to vehicle logo and environmental protection requirements, the outer surface of the outer cover 3 is smooth. A radiator 4 and an integrated circuit board 5 are installed inside the housing 1. An external vehicle is equipped with a control terminal (not shown in the diagram). Both the radiator 4 and the integrated circuit board 5 are electrically connected to the control terminal. A heater 6, also electrically connected to the control terminal, is installed inside the housing 1. The radiator 4, integrated circuit board 5, and heater 6 are arranged sequentially from closest to furthest from the housing 1. A heating diaphragm is installed inside the housing 1. The heating diaphragm is pre-formed using a hot stamping process and then integrated with the cover using an inlay injection molding process. The heating diaphragm is transparent and contains heating wires with a diameter of 0.02mm-0.The 2mm thickness does not affect optics or radar transmission performance. Rain sensors are placed on the surface of the headlights or other parts of the vehicle body to detect ice, snow, or its melted matter. When conditions are met, the heating system is activated or deactivated. During use, after the rain sensor detects ice and snow, the control terminal activates the radiator 4, heater 6, and heating diaphragm. The heater 6 and heating diaphragm heat the inner cover 2 and the outer cover 3 to quickly melt the ice and snow covering the outer surface of the outer cover 3. The radiator 4, integrated circuit board 5, and heater 6 all have through holes in their center. The housing 1 houses a radar 101. The radar 101 signal passes through luminous lines, which can meet the requirements of... To reduce signal penetration requirements of radar 101 and minimize losses when the 76GHz–77GHz millimeter-wave radar penetrates vehicle logos, the inner cover 2 and outer cover 3 are made of low-dielectric-constant plastic materials (such as liquid crystal polymers, LCP). Radar 101 is embedded within a through-hole in the center of the heat sink 4, integrated circuit board 5, and heater 6 to reduce obstruction of radar 101 by these components. This process reduces the area of ​​radar 101 obstructed while heating the outer cover 3. Heating the outer cover 3 via the heater 6 and heating diaphragm melts ice and snow, reducing the impact of ice and snow on radar 101. To reduce the probability of signal interference and thus ensure the accuracy of radar 101 signals, thereby improving vehicle driving safety, a fixing ring 7 is fixedly attached to the right side of radar 101. The fixing ring 7 fits snugly against the inner cover 2. The fixing ring 7 has several circumferentially distributed notches, which are used to guide the hot air generated by heater 6 and heating diaphragm into the fixing ring 7 to heat the middle part of the inner cover 2 and the middle part of the outer cover 3. This reduces the area of ​​radar 101 that is blocked while heating the ice and snow adhering to the middle part of the outer cover 3, accelerating the melting speed of the ice and snow on the middle part of the outer cover 3, thereby reducing the probability of radar 101 signal obstruction and improving radar 101 signal accuracy. To improve vehicle safety and enhance accuracy, the radar 101 is equipped with several circumferentially distributed illumination lamps 8. These lamps 8 are electrically connected to a control terminal. All illumination lamps 8 point towards the axis of the outer casing 3. The lamps 8 are located around the radar 101 and employ a V-shaped dot optical structure and V-Cut laser processing technology to minimize the area of ​​light emitted by the lamps that obstructs the radar 101 signal. The illumination lamps illuminate the center of the outer casing 3 without obstructing the radar 101 signal. When the vehicle emblem is no longer in use, the radiator 4, heater 6, and illumination lamps 8 are shut off via the control terminal.

[0028] Example 2

[0029] Relying solely on heat conduction to melt the ice layer that is tightly attached to the surface of the car logo, especially a thicker ice layer, is often inefficient and time-consuming. During the melting process, the melted and loosened ice and snow will still adhere to the surface of the car logo. If the ice and snow are not completely removed from the car logo in time, the melted snow water will re-condense on the car logo due to the cold weather, which will lead to slow or unstable radar signal recovery.

[0030] Based on Example 1, such as Figure 2 and Figures 5-7 As shown, the inner cover 2 is rotatably connected to a rotating ring 9, and a torsion spring is fixedly connected between the rotating ring 9 and the radar 101. The radar 101 is fixedly connected to an outer sleeve 10, and a thermal block 11 is disposed inside the outer sleeve 10. The thermal block 11 is made of a material that expands when heated, such as paraffin wax. After the heater 6 is turned on, the thermal block 11 senses the heat, melts, and expands. The outer sleeve 10 is slidably connected to an inner slide rod 12, which is sealed and slidably connected inside the outer sleeve 10. The outer sleeve 10 is located away from the thermal block 11. An exhaust port is provided on one side. The thermal block 11 is located between the outer sleeve 10 and the inner slide rod 12. The inner slide rod 12 is fixedly connected to a compression block 13. The rotating ring 9 is provided with a limiting groove 14. After the thermal block 11 expands, the thermal block 11 pushes the inner slide rod 12 to move, and the inner slide rod 12 drives the compression block 13 to move. The compression block 13 compresses the limiting groove 14, so that the rotating ring 9 rotates. The rotating ring 9 is provided with a number of circumferentially distributed holes 16. The radar 101 is fixedly connected with circumferentially distributed holes 16. The same number of elastic telescopic rods 15 are arranged in the holes 16. The telescopic part of the elastic telescopic rod 15 is used to penetrate the adjacent holes 16. Initially, the telescopic part of the elastic telescopic rod 15 is pressed down by the rotating ring 9, and the telescopic part of the elastic telescopic rod 15 is in a stored and contracted state. During the rotation of the rotating ring 9, the torsion spring of the rotating ring 9 torsionally stores force. When the hole 16 rotates to align with the telescopic part of the adjacent elastic telescopic rod 15, the telescopic part of the elastic telescopic rod 15 extends and penetrates into the hole 16. The telescopic part of the elastic telescopic rod 15 impacts the rotating ring 9, and the rotating ring 9 transmits the impact force to the inner cover 2 and the outer cover 3, causing the outer cover 3 to be affected by the impact, which helps the ice and snow on the outer cover 3 to fall off. During the melting of the ice and snow on the outer cover 3, the ice and snow on the outer cover 3 move slightly, which accelerates the speed at which the ice and snow on the outer cover 3 falls off, thereby reducing the probability that the radar 101 signal is blocked by ice and snow, and thus improving the accuracy of the radar 101 signal, thereby improving the safety of vehicle driving.

[0031] like Figure 7As shown, an elastic block 17 is fixedly connected to the hole 16. The telescopic part of the elastic telescopic rod 15 is used to squeeze the elastic block 17. The elastic coefficient of the elastic telescopic rod 15 is less than the elastic coefficient of the elastic block 17. The elastic coefficient of the elastic block 17 is less than the elastic coefficient of the torsion spring on the rotating ring 9. When the ice and snow on the outer cover 3 fall off, the heater 6 is turned off by the control terminal. During the cooling and solidification process of the heat-sensitive block 11, the torsion spring of the rotating ring 9 is reset, the rotating ring 9 rotates and resets, and the rotating ring 9 squeezes the squeezing block 13 through the limiting groove 14. The squeezing block 13 moves and resets, so that the inner slide rod 12 moves and resets. During the rotation and reset process, the rotating ring 9 drives all the elastic blocks 17 to rotate and reset. The elastic block 17 squeezes the telescopic part of the elastic telescopic rod 15. The elastic block 17 is compressed. Then the telescopic part of the elastic telescopic rod 15 is squeezed and reset. After the telescopic part of the elastic telescopic rod 15 is reset, the elastic block 17 rebounds and resets.

[0032] like Figure 6 and Figure 8 As shown, a flexible strip 18 is fixed to the rotating ring 9. Initially, the flexible strip 18 blocks all the gaps in the fixed ring 7 to reduce the probability of hot air entering the fixed ring 7 and affecting the radar 101 signal. The flexible strip 18 is provided with several circumferentially distributed flow grooves 19, which are used to connect the corresponding gaps on the fixed ring 7. During the use of this logo, if the ice and snow on the outer cover 3 are not melted in time, the heat provided by the heater 6 is low, the heat-sensitive block 11 does not expand, the rotating ring 9 will not rotate, and the hot air will not enter the fixed ring 7 to reduce the impact of the hot air on the radar 101 signal. When it is necessary to melt the ice and snow quickly, the heat-sensitive block 11 expands due to heat (the heat provided by the heater 6 is high), the rotating ring 9 rotates and drives the flexible strip 18 to rotate, causing all the flow grooves 19 to move. When the rotating ring 9 rotates to the limit state, all the flow grooves 19 are connected to the fixed ring 7, allowing the hot air to enter the fixed ring 7.

[0033] Example 3

[0034] Based on Example 2, such as Figure 8 As shown, an impact ball 20 is provided between the inner cover 2 and the outer cover 3. An elastic element, which is a spring, is fixedly connected to both the impact ball 20 and the inner cover 2 and the outer cover 3. During vehicle operation, the elastic element deforms continuously, causing the impact ball 20 to shake and impact the outer cover 3, causing the outer cover 3 to vibrate and shake off the ice and snow on the outer surface of the outer cover 3. This accelerates the probability of the ice and snow on the outer surface of the outer cover 3 falling off during the melting process, thereby reducing the obstruction of the radar 101 signal by the ice and snow and improving the accuracy of the radar 101 signal.

[0035] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A luminous ACC car emblem with automatic de-icing and heating control function, comprising an inner cover (2) and an outer cover (3) installed in a housing (1), wherein luminous lines are provided inside the outer cover (3), the outer surface of the outer cover (3) is a smooth surface, and a heat sink (4) and an integrated circuit board (5) are installed inside the housing (1), characterized in that, A heater (6) is installed inside the housing (1). The heat sink (4), the integrated circuit board (5) and the heater (6) are arranged in sequence from the position closest to the housing (1) to the position furthest away. A through hole is provided in the middle of the heat sink (4), the integrated circuit board (5) and the heater (6). A radar (101) is provided in the housing (1). The radar (101) is embedded in the through hole in the middle of the heat sink (4), the integrated circuit board (5) and the heater (6). A fixing ring (7) is fixed to the side of the radar (101) away from the housing (1). The fixing ring (7) fits against the inner cover (2). The fixing ring (7) is provided with several notches distributed in a circumferential direction. The radar (101) is equipped with a plurality of circumferentially distributed illumination lamps (8), and all the illumination lamps (8) are directed toward the axis of the outer cover (3). All the illumination lamps (8) are located around the radar (101). The illumination lamps (8) adopt a V-shaped dot optical structure and V-Cut laser processing technology to reduce the area of ​​the light source emitted by the illumination lamps (8) that obstructs the signal of the radar (101). The inner cover (2) is rotatably connected to a rotating ring (9), and a torsion spring is fixed between the rotating ring (9) and the radar (101). The radar (101) is fixedly connected to an outer sleeve (10), and a thermal block (11) is provided inside the outer sleeve (10). The outer sleeve (10) is slidably connected to an inner slide rod (12), and the thermal block (11) is located between the outer sleeve (10) and the inner slide rod (12). The inner slide rod (12) is fixedly connected to a pressing block (13). The rotating ring (9) is provided with a limiting groove (14), and the pressing block (13) is used to press the limiting groove (14) to make the rotating ring (9) rotate. The rotating ring (9) is provided with a number of holes (16) distributed circumferentially. The radar (101) is fixedly connected to an elastic telescopic rod (15) distributed circumferentially and in the same number as the number of holes (16). The telescopic part of the elastic telescopic rod (15) is used to punch into the adjacent holes (16).

2. A luminous ACC vehicle emblem with automatic de-icing and heating control function according to claim 1, characterized in that, The hole (16) is fixedly connected to an elastic block (17), and the telescopic part of the elastic telescopic rod (15) is used to squeeze the elastic block (17).

3. A luminous ACC vehicle emblem with automatic de-icing and heating control function according to claim 2, characterized in that, The elastic coefficient of the elastic telescopic rod (15) is less than that of the elastic block (17), and the elastic coefficient of the elastic block (17) is less than that of the torsion spring on the rotating ring (9).

4. A luminous ACC vehicle emblem with automatic de-icing and heating control function according to claim 1, characterized in that, The rotating ring (9) is fixed with a flexible strip (18), which is used to seal all the gaps in the fixed ring (7).

5. A luminous ACC vehicle emblem with automatic de-icing and heating control function according to claim 4, characterized in that, The flexible strip (18) is provided with a plurality of circumferentially distributed flow grooves (19), which are used to connect the corresponding gaps on the fixed ring (7).

6. A luminous ACC vehicle emblem with automatic de-icing and heating control function according to claim 1, characterized in that, An impact ball (20) is provided between the inner cover (2) and the outer cover (3), and an elastic element is fixedly connected between the impact ball (20) and the inner cover (2) and the outer cover (3).

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